Rechargeable Na-MnO_(2) battery with modified cell chemistry

作     者：Sirugaloor Thangavel Senthilkumar Rebeca Marcilla Youngsik Kim Jesus Palma Mani Ulaganathan Jeong-Sun Park Sirugaloor Thangavel Senthilkumar;Rebeca Marcilla;Youngsik Kim;Jesus Palma;Mani Ulaganathan;Jeong-Sun Park

作者机构：School of Energy&Chemical EngineeringUlsan National Institute of Science and Technology(UNIST)Ulsan 689-798Republic of Korea Electrochemical Processes UnitIMDEA Energy InstituteAvda.Ramón de La Sagra 328935MóstolesSpain Center for Advanced Materials ResearchResearch Institute of Science and TechnologyUniversity of SharjahP.O.Box 27272SharjahUnited Arab Emirates Energy Materials and Devices Lab4TOONE CorporationUNIST-gil 50Ulsan 689-798Republic of Korea Department of SciencesAmrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatore 641112India 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第84卷第9期

页      面：414-423页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2016H1D3A1909680) supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (20215610100040), Development of 20Wh seawater secondary battery unit cell minsisterio de Economia y competitividal (Spain) for the financially supporting this study through Juan de la Cierva-Incorporación program (IJC2018-038426-I) 

主　　题：Hybrid battery Sodium metal Sodium biphenyl High cell voltage Manganese dioxide battery Modified cell chemistry 

摘      要：High voltage,high energy density,nominal cycle life,and low cost are the most critical requirements of rechargeable batteries for their widespread energy storage applications in electric vehicles and renewable energy ***-MnO_(2) battery could be a low-cost contender,but it suffers extensively from its low cell voltage and poor *** this study,we modified the conventional cell structure of Na-MnO_(2) battery and established altered cell chemistry through a hybrid electrochemical process consisting of Na striping/plating at the anode and Zn^(2+) insertion/de-insertion along with MnO_(2) dissolution/deposition at the *** the modification,Na-MnO_(2) battery exhibits a discharge capacity of 267.10 mA h/g and a cell voltage of 3.30 V(***/Na^(+)),resulting in a high specific energy density of 881.43 Wh/*** 300 cycles,the battery retains 98% of its first-cycle discharge capacity with100% coulombic ***,Na metal-free battery assembled using sodium biphenyl as a safer anode also delivers an excellent energy density of 810.0 Wh/*** work could provide a feasible method to develop an advanced Na-MnO_(2) battery for real-time energy storage applications.